1.75mm Bowden Coupler
youmagine
I needed a smaller bowden coupling than the usual big pneumatic coupling that fit my design. For my need I was able to get away with a "free" coupling that prevents the tube from getting pulled out by having a collar on the top which prevents it from being pushed down and thus releasing the tube. If you need to attach it to your extruder or a holder of some sort, you can probaly get away with a boolean addition ;)
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